A grey wagtail has been coming to our tiny garden this cold spell. It would appear to be an older bird (pale throat, yellower breast than 1st winter). It is extremely confiding, settling occasionally on the window-ledge and even the patio door-handles, occasionally tapping on the window. There are no water features in our garden, nor have we put out any unusual foods (just peanuts, oatmeal, niger and sunflower seeds, and apples). There are streams locally and grey wagtails are present, but I´ve never seen one in our garden. This particular bird doesn´t appear ill, it is quite active and flies readily - it just seems to think it´s a robin. Has anyone come across this before?